Astronomy Observation Log

Classic Rich Field Astronomy

nightfall-dystrup-classic-rich-field-book-1Download

Classic Rich Field booklet (print-on-demand)

Messier Objects – Cosmology

messier-reboot-preample-1Download

Messier Nebulae

messier-nebulaeDownload

Messier Nebulae – Orion/Cygnus Arm

m42-m43-4Download

m78-1Download

Messier Nebulae – Sagittarius Arm

sgr-messiersDownload

Messier Open Clusters

messier-ocDownload

Messier OC : 0-10 Myr (“Kindergarten”)

messier-oc-0-kindergarten-1Download

Messier OC : 10-100 Myr (“Teenagers”)

messier-oc-1-teenagersDownload

Messier OC : 100-1000 Myr (“Boomers”)

messier-oc-2-boomersDownload

Messier OC : 1000-5000 Myr (“Retirees”)

messier-oc-3-retireesDownload

Messier OC : 5000-10000+ Myr (“Hospice”)

messier-oc-4-hospiceDownload

Messier Dying Stars

Death of Messier High Mass Stars
(Supernovae)

01-messier-sn-lDownload

Death of Messier Low Mass Stars
(Planetary Nebulae)

02-messier-pn-lDownload

Messier Globular Clusters

messier-gc-lDownload

Messier GCs, XLS (MS Excel)

messier-gc-l.pdfDownload

Classic NGC Observations

Classic best NGC list, PDF (Adobe)

classicngc-bwDownload

Classic best NGC list, XLS (Excel):

classicngc-bwDownload

Classic Best NGC – WINTER

classicngc-wDownload

CBN Winter – PERSEUS

classicngc-w-perDownload

CBN Winter – Auriga

classicngc-w-aur-2Download

CBN Winter – Taurus

classicngc-w-tau-02-1Download

CBN Winter – Gemini

classicngc-w-gem02Download

CBN Winter – Orion

classicngc-w-oriDownload

CBN Winter – Monoceros

classicngc-w-mon-1Download

CBN Summer – Cepheus

classicngc-s-cepDownload

CBN Fall – Cepheus

classicngc-f-cep-2Download

CBN Fall – Cassiopeia

classicngc-f-casDownload

CBN Fall – Pegasus – Andromeda – Perseus

classicngc-f-peg-and-per-1Download

Advertisement

Boyer-Moore Search

Boyer-Moore search algorithms.

Boyer-Moore algorithms for searching a text for a single substring.
These modules use a reverse (right->left), pattern scan with two predefined shift functions resulting in an average sub-linear performance:  O(text-length/pattern-length).
______________________

MAKEFILE
BM.H
BM.C
BM.TST
______________________

Tuned Boyer-Moore search algorithm.

Tuned Boyer-Moore (BM) algorithm for fast string searching.
These modules implement a compact, portable and fast BM algorithm, ie. an unrolled variant of search forward for rightmost char in the pattern.

______________________

MAKEFILE
TBM.H
TBM.C
______________________

Aho-Corasic Search

Aho-Corasic search algorithm.

Aho-Corasic algorithm for searching a text for several fixed substrings. These modules implement a simple “Finite State Automaton” (FSA) to locate all occurences of any of a number of keywords in a string of text.
______________________

MAKEFILE
AC.H
AC.C
______________________

Bool

Boolean expression evaluation

These modules implement a simple compiler for evaluating boolean expressions.
The compiler is structured into two parts :

1: a front end for transforming a boolean expression from infix form to postfix form (consisting of : SCANNER, PARSER, EMITTER);

2: a back end for interpreting the postfix boolean expression using an abstract/software stack machine (consisting of : INTERPRETER).

The compiler “front end” and “back end” communicate using a common symbol table (cf BOOL.H).
______________________
MAKEFILE
BOOL.H
BOOL.C
BOOLTST.BAT
______________________
BOOL.C includes the general header files (see blog post: General):
general.h, error.h and stack.h

General

General header files for C-program compilation

Targeting MS-DOS or UNIX OS.
Includes macros (in STACK.H) for creating stacks of simple objects.
Includes macros (in ERROR.H) for general error handling.
______________________
GENERAL.H
STACK.H
STACK.C
STACK.TST
______________________
MAKEFILE
ERROR.H
ERROR.C
ERROR.TST